Tube-making machine.



P. MENZEL.

TUBE MAKING MACHINE.

APPLIQATION FILED NOV. 26, 1913 Patented Feb; 8, 1916.

4 SHTETS-SHEET I P. MENZEL.

TUBE MAKENG MACHINE. APPL|cAT|0N FILED Nov. 26, 1913.

1,17'0,837. v Patented Feb. 8, 1916.

4 SHEETS-SHEET 2 Egz -P. MENZEL.

TUBE MAKING MACHINE. APPLICATION FlLED NOV. 26, 1913.'

Patented Feb.8 ,1916.

4 $HEET$-SHEET 3 .wmmw

P. MENZEL.

TUBE MAKING MACHINE.

, APPLICATION FILED NOV. 26, 1913- 1,170 337, v Patented Feb. 8,1916,

4 SHEETS- SHEET 4.

smart s TE A RAUL MEITZEL, 01E VIENNA. AUSTRIA-HUNGARY.

TUBEMAKING MACHINE.

To all whom it concern:

for Letters Patent Serial No. 803,051 filed by me Nov. 25, 1913.

.The drawinggives an illustration of the machine forming the subject matter of this invention.

Figure 1 is a front view: Fig. 2 is a plan view: Fig. 3 is a View of part of the machine on an enlarged scale: Fig. 4 is a. vertical section on 11-13 Fig. 3, seen in the direction of the arrow X: Fig. 5 illustrates details.

The top edges 2 of the two lateral walls ,1 of the frame of the machine are dovetailed in cross section so as to provide a guide for each of the supports 3 which are capable of sliding horizontally in the longitudinal direction of the machirie. The base of each support 3 has a groove underneath in which the'respective dovetails2 fit. Under the lower surface of each dovetail a rack 8 is arranged. The two supports 3 carry a horizontal shaft 4. The shaft t passes through horizontal longitudinal apertures 5 provided in both the lateral walls 1 of the frame and is furnished at the front with a crank 6 and carries two spurwheels 7 each of which engages one of the racks 8 so that upon the crank 6 being rotatedthe spurwheels 7- are simultaneously driven along the racks 8 so as to impart 'to the supports 3 an equal progressive motion. ,Eaeh support 3 carries a bearing 9 into which one end'of hollow drum 10 can be inserted and be capable of rotating freely. Said drum 10 serves as a mandrel to wind up the-band 102 from which the insulating; tube is to be made. The'length of the drum 10 depends'upon. the width of the band used. T he latter should preferably be made of paper which, for practical purposes, should not exceed three meters in width. The bearings 9 are divided I in their vertical longitudinal plane. One

Specification of Letters latent Patented Feb. 8,1916.

Application filed November 26, 1913. Serial No. 803,103.

half 9 of each said two bearings is rigidly connected with the corresponding support 3 while the other corresponding half 9 is capable of being swung around the horizontal pivot 11. To each half bearing 9* a screw 13 is hinged by means of a horizontal pin 12.

The screw 13 passes between two lugs 14 on the corresponding bearing half 9 and can be secured by means of a nut 15 furnished with.

a handle. In this manner both bearings 9 may, "for the purpose of laterally removing the drum 10, be opened and after the introduction of the latter, be again closed up and fastened. A pulley 16 is keyed to the projecting front end of the drum 10 and causes it to rotate when actuated by theoperators hand which may be used instead of the belt 31. The back support 3 is furnished with a; catch 17 extending downward between the two projections 18 and 19. The latter are formed like collars and secured in an adjustable manner to a horizontal cylindrical rail 20 which is longitudinally displaceable in bearings 21 which are fixed to the back lateral wall 1 of the frame of the machine. The support 3 When moved to and fro by means'of the catch 17 displaces the rail 20 in opposite directions according as to whether the catch 17 strikes the collar 18 or the collar 19. The object of this transmission of movement by means of thesupport 3 upon the rail 20 will be explained later on. Y

The back support 3 carries a bracket 21 (Fig. 5) in which a vertical screwed spindle 23 is fixed in such manner that it can be turned but cannot be displaced axially. The upper end of the screwed spindle is furnished with a handwheel 22. A nut 24 engages with the spindle 23 but is itself incapable of rotary motion so that upon the spindle 23 being rotated, the nut moves longitudinally on the spindle. The nut 24L is rigidly connected with the bent arm 25 and a horizontal pin 26 loosely carries a twoof electricity and the contact piece 30 with the other pole. Within the circuit of the source of electricity an electromagnetic coupling is arranged which switcheofi the driving gear between the continuously working motor and tor through the belt 31 and the pulley 16 so as to break off the current. As the support 3 moves away with the drum 10 whereby the distance of the same from the driving gear previously mentioned, is altered, the belt 31 must be furnished with some automatic stretching device. The electro-magnetic coupling of the transmission gear of the motor and the automatic belt stretching deyice are of known type and for the sake of simplicity are not shown in the drawings.

I So soon'as the tube wound around the drum main in contact with the contact 30. The.

10 has reached the desired outer diameter, the roller-28. comes in contact with the circumference of the tube, is raised and shifts .thelever 27 whereby the latter ceases to reresult is that the transmission gear which actuatestherotation of the drum 10 as ex plained above'is automatically switched off.

Upon the nut 24being fixed at the required height .by means of the spindle 23 and the hand wheel 22 this device canJbe so arranged beforehand that the action of the motor on the drum 10 is automatically stopped so soon as the wound up tube has reached the desired thickness.

The progressing motion of the supports 3 and of the drum 10 which it carries is limited in one direction (according to Fig. 1 of the drawings, to the right) by a couple of supporting rollers 32 and 33 arranged one above the other at a' distance apart, and in the other direction by a pair of special bearings 34 the construction and purpose of which will be explained later on. The hollow cylindrical and heatable rollers 32 and 33, the horizontal parallel hollow shafts 35 and 36 of which lie in a vertical plane at right angles to the longitudinal direction of the machine, that is to the direction of motion of the band, are as long as the greatest width of said band which can be wound upon the drum 10 with this machine. The shaft 35 is carried at each end.

- by a guide 37 and the shaft 36 is also carried at each end by a guide 38. Each of the two guides 37 and 38 lying the one above the other can slide on the part 39 which is provided on one of the standards 40 carried by the frame of the machine. A spindle 41 is screwed into each two opposing guides 37 and 38 and the guides, like the parts of the respective spindle 41 which coiiperate with them, are furnished with opposite screwthreads. Both the threads of each spindle 41 are separated by a collar 42 forming a projection. The upper end of each of the spindles 41 placed in the corresponding the drum rotated by the mo-' together standard 40 is furnished with a wheel 43 by the rotation of which the distance between the two upper and lower pairs of guides 37 and 38 can be varied. In this way the distance between the two cylinders 32 and 33 may be regulated beforehand according to the required thickness of the tubing wound around the drum 10.

On each longitudinal side'of the machine .one of the two bearings 34 previously re ferred to,

zontal arms 34 made of resilient material which arms are secured to a small bracket 44 firmly fixed to the frame ofthe machine.

The longitudinal edges of the cheeks 34 are bent in such manner that they diverge from one another (Figs. 1 and 3). The distance between thetw o arms'34 of each. bearing 34 may be altered and adjusted by a screw 45 furnished with a handle, 'wherebyth'e two corresponding cheeks 34 may be fastened more or less tightly. in tickets 44 carry a board 48 movable around a horizontal-shaft 46 and provided with a The two small counterweight 47 which by overbalancing fallsupon the wound up drum 10 when the latter is supported by the two bearings 34. Within the space inclosed by the frame of the machine a horizontal narrow table 49 is arranged so as to be capable of an up and down-motion. Thelength of the'table measured in the direction of the width of the machine is at least equal to the great-est width of-the-band capable of being wound upon the drum 10 by this machine, The position of the table 49 relatively to the motion .of the support is so calculated that the central, line of the drum 10 occupies a position some-t what above the longitudinal center of the table 49 when the support 3 has performed half the distance from one end toward the other end of its journey. The narrow sides of the table 49 each engage a :ertical guide 50 which is rigdly connected with the wall 1 of the frame of the machine next to it. The two guides 50 are provided with horizontal longitudinal slits 51 which with the previously mentioned slits 5 permit of introduction of the shaft 4 and said guides are connected together and supported at their upper ends by a horizontal rod 52. ,The table 49 is supported by two stands 53 which are provided, near the narrow ends of the plate 49. Each stand 53 is placed inside a hollow post 54 in which it can be raised or stand 53 is formed into a rack 55 which is' engaged by a spur-wheel 57 through a vertical' longitudinalslit 56 provided in the side carried by the respective posts 54. The front end of the shaft 58 is furnished with a chain wheel 60. The smooth upper part of each so actuated, a paper cutting device.

stand53 which projects from the post 54 is furnished with a collar 61 and above the same anadjustable collar 62 is provided. Between the collar 61 and the collar 62 a guide 63 -displaceable within fixed limits is arranged, which guide has a horizontal lateral projecting trunnion 64. Said trunnionengages a longitudinal slit 65 of a lever -which is secured to a horizontal shaft 67 across the frame of the machine. This shaft is common to both levers 66 and provided with a crank 68 at the front end. A. lever 70 loadedwith a counterweight 69 is attached to the shaft 67 about the middle.

The lower .end of a vertical plate spring 71 is secured to the guide 63. The length of said plate spring, measured in the direction of the width of the machine, corresponds to the length oftherollers'32 and 33. The free upper edge of the spring v71 is furnished with a row of rectangular tongues 73 of equal size, and equally spaced apart so as to form recesses 72 between ,each two' adjacent tongues (Fig. 4). The upper ends of the lugs 73 are formed in suchmanner that they 7 provide bearings for a shaft 74 which extends over the whole length of the spring 71 parallelly to thefcentral line of the drum 10.

Free rotatable-small rollers 75 rest upon said shaft, each of which passes through one of .the notches 72. The spring 71 passes through. a vertical slit 76 which extends over the whole length of the 'table 49. The lowerart of the slit 7,6 is narrower than the diameter of the small rollers 75 m that it prevents the letter from passing through downward. The upper part of the slit 76 on the contrary is wider so that the small rollers 75 had their position in it and'can thus be raised from the slit and *reach above the table 49. The passage between these tWo different dimensioned parts of the :slit 76 is provided with a constriction which can serve as 'a support for the small rollers.75. l v

The u per part of thd table 49 carries a pair of cutters 77 arranged at a distance from one another the cutting line of which lies verticallyto the direction of motion of the band .and extends over the whole width of the table 49. Both cutters 77 form together with another cutter (not shown in the drawing) which passes between them, wghen his secondly mentioned cutter may, for instance, consist of ,a cutting wire stretched obliquely over the whole width of the machine in a vertical plane, and driven through the aper ture between the cutters 77.

A transferring device is arranged upon the frame of the machine. Said device consists of two hollow parallel cylinders 7 8 and 79 arranged with space between them and which extend over the whole width of the machine and are secured upon two horizontal hollow shafts 80 and 81 at the same height, .Each end of the shafts 80 and 81 carries respectively chain wheels 82 and 83. An endless crossed chain 84 is fitted on the two wheels 82 and 83. The shaft 80 oariies furthermore a pulley 85 which is continuously actuated by the belt 86 so that the rollers 78 and 79 are made to rotate in opposite directions. Between the rollers 78 and 79 parallel to the same a smaller roller 87 is the double wall 90 of the trough 89.. In,

trough 89 a mixer 91 is provided for the purpose of agitating the material. The cylinder 78 drives by its rotation the liquid material from the trough 89 on to the roller 87. Above the latter a channel 92 in the form of a groove which extends over the whole length "of the, rollerv is "provided, which allows part of the material to pass from the roller 87 to the roller7 9 while the excess runs off through apertures into the groove 92 and through outlet pipes. connected therewith. into the trough 89. By adjusting the distance of channel 92 from roller 87, a suflieiently thick and even coating of insulating material may be applied to roller 79, the thickness of the coating to be applied to the band 102 being controlled as hereinafter stated.

Underneath the transferring device provision 1S madev for a roller 93 which extends over the whole width of the machine, and is carried by twolevers 94, which are both shaft of which a chain wheel 99 is, connected.

An endless chain 100 is passed over the two wheels 60 and 99. Between the transferring roller 79 and the supporting roller 38 a con- 161 for the 102 traversed by .-1 it iii heating pipes, is arranged in an oblique upward direction. Near'the frame of the machine, two stands 103 are provided which serve to support a reel 104 of paper to be wound. The shaft supporting the latter ca'rries a brake band 105 one end of which is secured to the front support 103 and the other end of which is loaded with a weight 106. The weight 106 is supported by one arm of an angular lever 108 movable around the horizontal pin 107 while the other arm is co-ni'iected with a pulling rod 109 which extends to the opposite end of the frame of the machine. The base the stand-96 can ries, on-the side facing thereel 10 1 a bracket 110- which supports a roller 111 extending over the whole width of the inachine, to guide the band 102 unrolled from' the. reel 10%;.

The production of an albino; by means of the above described nun line, is carried out as follows: In the first place'the distance between the two supporting rollers 32 and 33 adjusted by means of the two screw spindles 41 and the height of the nut 2d of the self-adjusting device (Fig.6) which corre sponds to the required outer diameter of the tube to be wound up around the drum 10 between the rollers and is adjusted by means of the screw spindle 23. Forth-en more, the projection or collar 19 must so adjusted that when the support 3 is shii tc a 'ay for the first timefrorn the cy 32 and against the bearings 3 1 it not be actuated by the catch 1'? so guiding roller 93 should reach th: shown in Fig. 1 and the band 102 be to the transferring roller T0. Then is introducedinto the bearings 9 I previously opened and then clos and shifted together with the support 3 by means of the crank fl-to the central position occupied by the drum 10 above the longitudinal central line 01 thetahle 19. If desired, the drum may be coated with an insulating substance which has for its object. to facilitate the stripping; of the tube from the drum after the latter has been heated.'whiile the insulating substance will also form. a film on the inner face of the completed tube. When the roller 104 is introduced into the hearings of the support 103 the free end of the band 102 is then appropriately seized by tongs and the band -up on the action of the brake 105 being at the same time reduced, is drawn over the guiding rollers 111 and 93 and the guide 101 between the supporting rollers 32 and and takes its position upon the drum 10 in such manner that a par-tot the band projects over the drum. Then by means oi? the roller 79 the insulating" material is transferred in. the desired thickness on to the progressing band. The thickness la}?- ers of the insulatmg substance applied thus of the s. end the band and cause it to adhere I drum 10 by means of the belt 31 nieces":

dependsv upon the height of the guiding to roller 93 and also upon the more or close approximation of the latter to the transferring cylinder 79. Now by an approximate rotation of the spur wheel 57 by means of the hand wheel 98 and the chain? gear 99, 100 and 60the table 49 must be raised until it tightly presses the hand 102 against the drum 10. The band is then. by means of the cutter 77 cut'between them across its width. When the table 40 is moved upwarch the collars d1 reach the posi tion indicated by the dotted lines (Fig. 3) and raise the guide 63 together with the spring 71 and the small rollers 75 without their leaving the slit 76. When the lever 66 has been oved upward by means of the crank 0% "5 are rais d 01 the small rollers l 70 over the table 10 and catch the drum 10 by the action of the spring. The drum can be heated so .30 insure insulating material to be applied to band remaining hot and adhere. After the ban-flhas been cut and the free end of it has been niacle to adhere to the drunn the small rollers 75 may be lowered by means of the crank 68 so that they may reenter the slit 6 of the table; The latter is then by means of spur wheels 57 racklifi' and the chain gear 09, 0 and brought to the lower position by the rotation of the. hand wheel 08. The is then made to rotate by the motor connected with it when the transmission gear is brought into operation while simultaneously by means of the rod 100 the brhire band is .naoe to act with greater intensity and by of the rod 109 the lever 108 is displaced and allows the weight 106 to descend. Then the band 102- is rolled up around the drum 1.0 105 which however is at the same time compelled to approach the supporting rollers and 33 together with thesupport 3 inasmuch as the loo length of the band already unrolled from. the roller 10% 1S reduced to an extent equal to the length Wound around the drain. ll hen the drum together with the hand Wound arouno it comes in contact we 7 the rollers 32 and 33 (Fig. 1) then the brake 105 is again released owing to the sing of against the rfillers 32 and when the band is wound up is altered and at the same time by the alteration of the temperature in said rollers the lZlUCKBGSS oi the coat of insulatiugt substance which is to be retained on the band Il'lfli" be varied as desired.

ll 3011 the displacement of the su. )ort 3 i 1 irornits central position agalust the rollers 32 and 33 the rail 20 together with the pro jection 18 occupies the right hand extreme position and is not actuated by the catch 17 so that the roller 93 also remains in the highest position shown in Fig. 1. When the rotation of the drum 10 is continued the band 102 is wound around it after the liquid insulating material has been steadily transferred to it. The .winding continues until the desired thickness of the tube has been obtained. At that moment the roller 28 comes in contact with the circumference ofthe wound-up tubing, is raised and displaces the lever 27 upward, so that the latter is no longer in contact with the contact piece 31); whereby the motive power of the drum 10 is affected in the manner previously explained.

The bearings 9 are then opened, the halves 9 of the same are turned down and the sup port 3 is then together with the drum carrying the winding displaced by the action of the hand crank 6 until the ends of the drumare introduced into the bearings 34: which have been previously opened to receive them. Then the bearings 34 are tightened up by means of the sc'few 45 so as to hold the drum. The vacafitsupport 3 in which a new drum is introduced is moved back by hand or by means of the crank 6 and reaches it. central? position again above the table 49. The table is then again raised as before and the band which adheresbetween the latter and the new drum is cut oil between the cutters 7 7 When the wound up drum leaves the support 3 the spring 29 tends to again drive the lever 27 against the contact piece 30. The latter is therefore held by a wedge or other similar device of non-conducting material, which is not removed until the support 3 again occupies its central position. The result is that the circuit by the interruption. of which the coupling of the transmission gear between the spindle andthe motor is released remains unbroken until the winding of the end of the band around the drum begins again.

The drum with the winding and carried by the bearings 34: is now further rotated in the manner hereinbefore stated by means of the pulley 16 operated by hand, when the part of the band hanging on the Wound-up spindle is caught and made to adhere to the drum. The necessary pressure for this purpose is obtained by the board 4:8 which by the action ofgoverweight comes to rest upon the circumference of the wound-up tubing. The latter is then together with the drum removed from the learings 34 previously opened and then the drum is neated from the inside for the purpose of removing the tubing from the drum.

to the drum then melts. Thev end of the band 10% held between the new drum and the Such removal is easy, as th: insulating substance attached as: as

around the'said drum in the same way as 6 before mentioned, which for this purpose after the removal of the insulator wedge inserted between lever 27 and the contact piece 30 is again worked by motor, when at the same time the brake band 105 is more powerfully applied. The collar 19 on the rail 20 must befixed. in such manner that said collar should be seized by the catch 1'? and the rail 20 should be displaced so soon as the drum reaches the bearings 34'and the band 102 is stationary. By means of the rail 20, which is displaced to the left the lever 9 and the roller 93 are'caught and moved in the same direction. Then the guiding roller 93 goes down and allows the band 102 to move away from the roller" 79 which continues to rotate Without however actuating the band.

Claims:

1. A tube making machine comprising a frame, a bearing slidable thereon, a drum mounted in the bearing and adapted to be encompassedby a tube-forming band, a

2. A tube making machine comprising a frame, a bearing slidable thereon, a catch on the bearlng, a bar also slidable in the frame, a pair of adjustable stops on the bar that are adapted to be engaged by the catch, a transfer roller for conveyin plastic substance to the band, a guide roller arranged adapted to engage the band, and means for operatively connecting the bar to the guidein proximity to the transfer roller and frame, a drum mounted thereon and adapted to be encompassed by a tube-forming band. means for applying a plastic substance to said baud, vertically reciprocable table, a cutter mounted on said table adapted to sever the band, and a plurality of spring controlled rollers also carried by the table and adapted to press the end of the severed band against the drum. at. A tube making machine comprising a frame, a bearing slidable thereon, a drum hung in the bearing and adapted to be encompassed a ube-forming band, means for applying a plastic substance tothe band, means actuated by the bearing for controlling the supply of said substance, means for severing the band, means for pressing the end of the severed band against the drum. and heating rollers arranged in the path of the drum and adapted to engage the band.

1 achine comprising a ole thereon, a. drum g andadapted to be encompassed by a tubefonning band, a transfer roller'for' applying a, plastic substance to the band, a guide roller adaptedto e11- gage the band and. operable by the bearing,

a vertically reciprocable table, a cutter 011 I ,said table adapted to sever the band, a pluv mlitywf spring-controlled rollers also carried; by the table and. adapted to press the PAUL MENZEL.

I Witnesses:

ALERED HAMBURGER, -ADA MARIA BERGER. 

